The morphology of degummed silk fibers was observed under scanning electron microscope (SEM). Figure 4 shows SEM images of silk fibers in 3 different magnifications: 200, 1000, and 2000.

Silk sericin (SS), a natural hydrophilic protein by-product from the silk degumming process, is a bioactive antioxidant with strong UVblocking, antimicrobial, anti-tyrosinase,...

2022年12月21日 · The freeze-fracture cryo-scanning electron microscopy (see Methods at Cryo-SEM,) analysis of the anterior part of the silk gland, as well as an AFM analysis of the silk protein extracted from...

2022年10月12日 · We obtained transcriptome assemblies from 1098 species of spiders to comprehensively catalog silk gene sequences and measured the mechanical, thermal, structural, and hydration properties of the dragline silks of 446 species.

2019年1月23日 · Development of synthetic fibers mimicking natural silk is a major goal but has been hindered by insufficient knowledge of the silk structure. Nanoscale fibrils have long been suggested to play a significant role in silk; in this review, we examine prior evidence of nanofibrils in spider and silkworm silks.

2006年12月15日 · The silk fibril structure of spider dragline silk was observed by SEM and AFM (Fig. 1, a and b). The silk thread, having a diameter of 4–5 μ m, consists of a number of silk fibrils with diameter 40–80 nm.

The highly uniform and the fibrillar morphologies achieved with the 8% silk, 6% HCl and 4% silk, 6% HCl, respectively, are confirmed by SEM (Fig. 3F and 3H). The level of architectural and morphological detail in all cases resembles closely that of SEM images acquired to assess features that are relevant in the 1–1000μm regime.

2016年7月15日 · A one step, rapid method to prepare silk microspheres was developed, with particle size controlled by the addition of polyethylene glycol (PEG). PEG molecular weight (4.0 K–20.0 KDa) and concentration (20–50 wt%), as well as silk concentration (5–20 wt%), were key factors that determined particle sizes varying in a range of 1–100 μm ...

SEM of the surface and cross-section morphologies of silk fibers degummed by different concentrations of Na 2 CO 3 : ( (a1)– (a3)) 5%, ( (b1)– (b3)) 0.5%, ( (c1)– (c3)) 0.05%, and ( (d1)– (d3))...

2019年1月24日 · It is shown that Secondary Electron Hyperspectral Imaging (SEHI) is sensitive to compositional differences on both the micro and nano scale. On larger scales it can distinguish the lipids outermost layer from the protein core, while at smaller scales SEHI is effective in better resolving nanostructures present in the matrix.